#!/bin/env python
# -*- coding:utf-8 -*-
from multiprocessing import Process,Queue
import os,time,random
#写数据进程执行的代码
def write(q):
	print('Process to write:%s' % os.getpid())
	for value in ['A','B','C']:
		print('Put %s to queue...' % value)
		q.put(value)
		time.sleep(random.random())
#读数据进程执行的代码：
def read(q):
	print('Process to read:%s' % os.getpid())
	while True:
		value = q.get(True)
		print('Get %s from queue.' % value)
if __name__=='__main__':
	#父进程创建Quue.并传给各个子进程.
	q = Queue()
	pw = Process(target=write,args=(q,))
	pr = Process(target=read, args=(q,))
	#启动子进程pw, 写入.
	pw.start()
	#启动子进程pr.读取
	pr.start()
	#等待pw结束
	pw.join()
	#pr进程里是死循环，无法等待其结束，只能强行终止
	pr.terminate()
